It depends on the bacteria causing the infection. Most common use is strep or staph; but LGV can cause LGV urethra infection that is caused by - Chlamydia trachomatis (or) UTI - Mycoplasma hominis -

Erythromycin is an antibiotic approved to treat a wide range of infections caused by bacteria, such as streptococcal infections of the skin, ears, and sinuses, pneumococcal pneumonia, chlamydia, bronchitis; diphtheria; pneumonia; rheumatic fever;, certain venereal diseases, and other infections. UTI - Mycoplasma hominis -

Lymphogranuloma venereum: (LGV). An uncommon genital or anorectal (affecting the anus and/or rectum) or urethra infection that is caused by Chlamydia trachomatis.

Once LGV is diagnosed, it is usually treated with doxycycline 100 mg twice per day by mouth for 21 days. If this is not an option, for example, because of intolerance to the drug, erythromycin base 500 mg four times per day by mouth for 21 days can be used as an alternative.

A person who has been sexually exposed to a person with LGV should be examined for signs or symptoms of LGV, as well as for chlamydial infection of the urethra, since the LGV and urethral strains (types) of Chlamydia trachomatis can co-exist. If exposure occurred within 30 days of the onset of their partner's symptoms of LGV, the exposed person should be treated.

MRSA (Methicillin-Resistant Staphylococcus aureus) Infections - Drug-Induced Liver Disease - Strep Throat (Streptococcus bacteria) - Rheumatic Fever (streptococcal infection) - Whooping Cough (Bordetella pertussis) - Infectious Mononucleosis (strep A,mycoplasma, neisseria, and strep bacteria other than group A) - Pink Eye (Staphylococci and Streptococci) - diarrhea disease - Campylobacter

Erythromycin is an antibiotic approved to treat a wide range of infections caused by bacteria, such as streptococcal infections of the skin, ears, and sinuses, pneumococcal pneumonia, chlamydia, bronchitis; diphtheria; pneumonia; rheumatic fever; diarrhea disease - Campylobacter, certain venereal diseases, and other infections.

ORIGINAL USES (ON-LABEL): Various bacterial infections BRAND NAME- Ilosone

- GENERIC NAME Erythromycin - CHEMICAL CLASS - Macrolide derivative

THERAPEUTIC CLASS - Antibiotic (macrolide) oral, topical, intravenous, eye.

POTENTIAL SIDE EFFECTS Systemic: Irregular heart rate (ventricular arrhythmias, QT prolongation), headache, fever, seizures, rash, abdominal pain, cramping, nausea, oral yeast infection, vomiting, jaundice,

CAUTIONS: Do not use if you have pre-existing liver disease and use with caution if you have reduced liver function. - Do not use concomitantly with ergot derivatives, pimozide, astemizole, or cisapride.- May aggravate myasthenia gravis.

NEWLY DISCOVERED USES (OFF-LABEL)

Acne, chancroid, cholera, diarrhea due to Campylobacter, gingivitis, granuloma inguinale, impetigo, Lyme disease, lymphogranuloma venereum (AKA UTI), periodontitis.

FOOD INTERACTIONS: Avoid alcohol. The absorption of some erythromycin formulations are affected by food. Er. stearate should be taken at least two hours before or after a meal. Er. estolate, er. ethylsuccinate and erythromycin base may be taken without regard to meals.

Lack of energy, weight gain, increased appietite, legergy, tired. I've gained at least 30 pounds since last summer when they put me on it, but it's saved my life as I am no longer manic

My wife had the following side effect after took this medicine for two years. Cannot control the urine, walk very slow like 90 years woman, hand trembling, loss memory. After stopping this medicine, all of the problem went away.

body aches or pain ; congestion; cough; dryness or soreness of throat; fever ; hoarseness runny nose; tender, swollen glands in neck ; trouble in swallowing; voice changes

Less common

Abdominal or stomach cramps (severe); behavioral, mood, or mental changes; blurred vision;; confusion; ; continuous, uncontrolled back-and-forth and/or rolling eye movements; earache, redness or swelling in ear; dizziness,; double vision; faintness, or light-headedness when getting up from a lying or sitting position suddenly; sweating; unusual tiredness or weakness; fast, irregular, pounding, or racing heartbeat or pulse; heavy, nonmenstrual vaginal bleeding; increase in seizures; loss of appetite; nausea or vomiting (continuing); rapid weight gain; spots before eyes; swelling of face, arms, hands, lower legs, or feet; tingling of hands or feet; tiredness and weakness; unusual bleeding or bruising; unusual weight gain or loss; vomiting of blood or material that looks like coffee grounds; yellow eyes or skin

More common... these dont require medical attention but you should let your doctor know.

Abdominal or stomach cramps (mild); acid or sour stomach; belching; heartburn; indigestion; stomach discomfort, upset or pain; change in menstrual periods; crying paranoia; quick to react or overreact emotionally; rapidly changing moods; depersonalization; dysphoria; diarrhea; euphoria; hair loss; indigestion; lack or loss of strength; loss of appetite; loss of bowel control; mental depression; nausea and vomiting; paranoia; quick to react or overreact emotionally; rapidly changing moods; sleepiness or unusual drowsiness; trembling of hands and arms; unusual weight loss or gain

If you experience any of these side effects, let your doctor know right away, if any of the side effects become bothersome or not listed above call your doctor.

Less common or rare

Absence of or decrease in body movement; absent, missed, or irregular menstrual periods; stopping of menstrual bleeding; anxiety; nervousness; restlessness; bloated full feeling; bloody or cloudy urine; bloody nose; bruising; burning, crawling, itching, numbness, prickling, "pins and needles" , or tingling feelings; burning, dry or itching eyes; change in taste; chills; clumsiness or unsteadiness; coin-shaped lesions on skin; cold sweats; confusion; constipation; cramps; decreased awareness or responsiveness; degenerative disease of the joint; difficult, burning, or painful urination; difficulty in moving; discharge; excessive tearing of eye; discouragement; dizziness; drowsiness; dry mouth; excess air or gas in stomach or intestines; excessive muscle tone; muscle tension or tightness; muscle stiffness; feeling of constant movement of self or surroundings; feeling sad or empty; feeling of warmth or heat; ; flushing or redness of skin, especially on face and neck; frequent urge to urinate; headache; heavy bleeding; irregular heartbeats; irritability; joint pain; swollen joints; lack of appetite; lip smacking ; uncontrolled chewing movements; loss of hair; loss of interest or pleasure; loss of memory; problems with memory; mimicry of speech or movements; muscle aching or cramping; muscle pains or stiffness; mutism; negativism; normal menstrual bleeding occurring earlier, possibly lasting longer than expected; pain; passing gas; peculiar postures or movements, mannerisms or grimacing; puffing of cheeks; rapid or worm-like movements of tongue; redness, swelling, or soreness of tongue; severe sleepiness; shortness of breath; difficult or labored breathing; small red or purple spots on skin; stuffy nose; runny nose; sneezing; redness, pain, swelling of eye, eyelid, or inner lining of eyelid; seeing, hearing, or feeling things that are not there; sensation of spinning; shaking; shortness of breath; hyperventilation; skin rash; sweating; tightness in chest; tiredness; trouble concentrating; trouble in speaking; slurred speech; trouble sleeping; uncontrolled chewing movements; uncontrolled movements of arms and legs; unusual excitement, restlessness, or irritability; wheezing

body aches or pain ; congestion; cough; dryness or soreness of throat; fever ; hoarseness runny nose; tender, swollen glands in neck ; trouble in swallowing; voice changes

Less common

Abdominal or stomach cramps (severe); behavioral, mood, or mental changes; blurred vision;; confusion; ; continuous, uncontrolled back-and-forth and/or rolling eye movements; earache, redness or swelling in ear; dizziness,; double vision; faintness, or light-headedness when getting up from a lying or sitting position suddenly; sweating; unusual tiredness or weakness; fast, irregular, pounding, or racing heartbeat or pulse; heavy, nonmenstrual vaginal bleeding; increase in seizures; loss of appetite; nausea or vomiting (continuing); rapid weight gain; spots before eyes; swelling of face, arms, hands, lower legs, or feet; tingling of hands or feet; tiredness and weakness; unusual bleeding or bruising; unusual weight gain or loss; vomiting of blood or material that looks like coffee grounds; yellow eyes or skin

More common... these dont require medical attention but you should let your doctor know.

Abdominal or stomach cramps (mild); acid or sour stomach; belching; heartburn; indigestion; stomach discomfort, upset or pain; change in menstrual periods; crying paranoia; quick to react or overreact emotionally; rapidly changing moods; depersonalization; dysphoria; diarrhea; euphoria; hair loss; indigestion; lack or loss of strength; loss of appetite; loss of bowel control; mental depression; nausea and vomiting; paranoia; quick to react or overreact emotionally; rapidly changing moods; sleepiness or unusual drowsiness; trembling of hands and arms; unusual weight loss or gain

If you experience any of these side effects, let your doctor know right away, if any of the side effects become bothersome or not listed above call your doctor.

Less common or rare

Absence of or decrease in body movement; absent, missed, or irregular menstrual periods; stopping of menstrual bleeding; anxiety; nervousness; restlessness; bloated full feeling; bloody or cloudy urine; bloody nose; bruising; burning, crawling, itching, numbness, prickling, "pins and needles" , or tingling feelings; burning, dry or itching eyes; change in taste; chills; clumsiness or unsteadiness; coin-shaped lesions on skin; cold sweats; confusion; constipation; cramps; decreased awareness or responsiveness; degenerative disease of the joint; difficult, burning, or painful urination; difficulty in moving; discharge; excessive tearing of eye; discouragement; dizziness; drowsiness; dry mouth; excess air or gas in stomach or intestines; excessive muscle tone; muscle tension or tightness; muscle stiffness; feeling of constant movement of self or surroundings; feeling sad or empty; feeling of warmth or heat; ; flushing or redness of skin, especially on face and neck; frequent urge to urinate; headache; heavy bleeding; irregular heartbeats; irritability; joint pain; swollen joints; lack of appetite; lip smacking ; uncontrolled chewing movements; loss of hair; loss of interest or pleasure; loss of memory; problems with memory; mimicry of speech or movements; muscle aching or cramping; muscle pains or stiffness; mutism; negativism; normal menstrual bleeding occurring earlier, possibly lasting longer than expected; pain; passing gas; peculiar postures or movements, mannerisms or grimacing; puffing of cheeks; rapid or worm-like movements of tongue; redness, swelling, or soreness of tongue; severe sleepiness; shortness of breath; difficult or labored breathing; small red or purple spots on skin; stuffy nose; runny nose; sneezing; redness, pain, swelling of eye, eyelid, or inner lining of eyelid; seeing, hearing, or feeling things that are not there; sensation of spinning; shaking; shortness of breath; hyperventilation; skin rash; sweating; tightness in chest; tiredness; trouble concentrating; trouble in speaking; slurred speech; trouble sleeping; uncontrolled chewing movements; uncontrolled movements of arms and legs; unusual excitement, restlessness, or irritability; wheezing

• Drowsiness,
• headache,
• ataxia,
• vertigo,
• fatigue,
• diplopia,
• dizziness,
• nausea,
• vomiting,
• allergic skin reactions,
• edema,
• fluid retention,
• dry mouth,
• leucopenia,
• eosinophilia.
• Rarely, serious hematologic, hepatic, cardiovascular and dermatologic reactions

• Tell your doctor and pharmacist if you are allergic to Epival or any other drugs.
• Talk with your physician or pharmacist if you are taking other medications.
• tell your doctor and pharmacist what prescription and nonprescription medications you are taking, especially other seizure medications, acetaminophen (Tylenol), astemizole (Hismanal), clarithromycin (Biaxin), danazol (Danocrine), diltiazem (Cardiazem), doxycycline (Vibramycin), erythromycin, haloperidol (Haldol), isoniazid (INH), lithium, medications for colds or Allergies such as chlorpheniramine (Chlor-Trimeton), medications for depression such as amitriptyline (Elavil) and fluoxetine (Prozac), oral contraceptives, propoxyphene (Darvon), sedatives such as phenobarbital, terfenadine (Seldane), theophylline (Theo-Dur), verapamil (Calan), and vitamins. Carbamazepine affects the action of other medications, and many medications can affect the action of Epival. Tell your doctor and pharmacist everything you are taking.
• do not take Epival liquid at the same time as any other liquid medications.
• tell your doctor if you have or have ever had heart, kidney, or liver disease; glaucoma; high blood pressure; or a history of blood clots or blood disorders.
• tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while taking Epival, call your doctor immediately. Epival may harm the fetus.
• if you are having surgery, including dental surgery, tell the doctor or dentist that you are taking carbamazepine.
• you should know that this drug may make you drowsy. Do not drive a car or operate machinery until you know how this drug affects you.
• remember that alcohol can add to the drowsiness caused by this drug.
• plan to avoid unnecessary or prolonged exposure to sunlight and to wear protective clothing, sunglasses, and sunscreen. Epival may make your skin sensitive to sunlight.

The above is quoted from the website linked below.

Answer

I take the 500mg pill twice a day for epilepsy. Ever since I first started taking it very common side effects include:

Increase in Appetite (ie: feeling hungry often)

Weight Gain

Tired and Drowsy (ie: easily falling asleep and having a hard time getting out of bed)

Dizziness (ie: feels like you're rocking back and forth while standing still)

Problems with Balance (ie: Can't stay still on 1 foot)

Digestive Problems (ie: diarea, loose stool, very soft stool)